Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
chieu sach » chiet tach, chieu sang, chieu xanh
ngang toan » nganh toan, dang toan, quang toan
hang luan » tang luan, dung luan
dung cong » dung trong
luan tin » luan tinh, luat tin, xuan tin
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (chinh sach)) - hang luan tin dung cong ngang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hang luan tin dung cong ngang toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - hang luan tin dung cong ngang toan cau*.